Abstract
Many studies on metabolic rate of VLBW newborn infants have been performed in the laboratory. Data obtained under such conditions may not fully apply to newborn infants in the neonatal ward. We have studied oxygen consumption (VO2) in VLBW infants in the nursery. Birthweight and gestational age of the infants studied so far were 1.350±0.240 kg (mean±SD) and 28.5±1.2 wks respectively. Studies were performed at low and high humidity (water vapour pressure, P(H2O)) while incubator air temperature (Tinc) was not changed. Results: It is concluded, that metabolic rate of VLBW newborn infants in the nursery is very low in the first days of life. Despite their presumably large insensible water loss, increasing water vapour pressure in the incubator does not seem to affect their metabolic rate largely.
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